BS ISO BRITISH STANDARD 12488-4:2004 Cranes Tolerances for wheels and travel and traversing tracks Part 4: Jib cranes ICS 53.020.20 BSi NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT L British Standards BS ISO 12488-4:2004 National foreword This British Standard reproduces verbatim ISO 12488-4:2004 and implements itastheUKnationalstandard. The UK participation in its preparation was entrusted by Technical Committee MHE/3, Cranes and derricks, to Subcommittee MHE/3/1, Crane design, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international publications referred to in this document may be found in the BSI Catalogue under the section entitled "International Standards Correspondence Index", or by using the “Search" facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not ofitself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover,the ISO title page, pages ii to iv, pages 1 and 2, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication This British Standard was published underthe authority Amd. No. Date Comments of the Standards Policy and Strategy Committee on 10December2004 C BSI 10 December 2004 ISBN 0 580 45031 7 BS ISO.12488-4:2004 INTERNATIONAL ISO STANDARD 12488-4 First edition 2004-11-01 Cranes Tolerances for wheels and travel and traversing tracks - Part 4: Jib cranes Appareils de levage a charge suspendue-Tolerances des roues et des voies de roulement et de deplacement des appareils de levage a charge suspendue- Partie 4: Grues a fleche Reference number ISO 12488-4:2004(E) ISO BS ISO 12488-4:2004 := BS ISO.12488-4:2004 Foreword IsO (the International Organization for Standardization) is a worldwide federation of national standards bodies (iSO member bodies). The work of preparing International Standards is normally carried out through ISO non-governmental, in liaison with IsO, also take part in the work.isO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/lEC Directives, Part 2 The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. rights.ISOshallnotbeheldresponsibleforidentityinganyorallsuchpatentrights. ISO 12488-4 was prepared by Technical Committee ISO/TC 96, Cranes, Subcommittee SC 8, Jib cranes. IsO 12488 consists of the following parts, under the general title Cranes - Tolerances for wheels and travel and traversing tracks: Part 1: General — Part 4:Jib cranes ili BS ISO 12488-4:2004 Introduction fulfilment of essential safety requirements and adequate service life of components. Deviation from these rules normally leads to increased risks or reduction of service life, but it is acknowledged that new technical innovations, materials, etc., may enable new solutions that result in equal or improved safety and durability. iv BS ISO.12488-4:2004 Cranes - Tolerances for wheels and travel and traversi